Oh, it works on points? So the monsters and ancients emerging in a galaxy is an inevitability after all; but it did take around 60 sectors in the same galaxy before the Legion and Hezog emerged on their own, so at least it'll take a long time provided you don't speed it along by winning with them alive.

What's this about elimination, though? Is it actually possible to genocide a race enough times that they eventually stop showing up?